CN110380890B - CDN system service quality detection method and system - Google Patents

CDN system service quality detection method and system Download PDF

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Publication number
CN110380890B
CN110380890B CN201910474788.2A CN201910474788A CN110380890B CN 110380890 B CN110380890 B CN 110380890B CN 201910474788 A CN201910474788 A CN 201910474788A CN 110380890 B CN110380890 B CN 110380890B
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request information
cdn system
response
information
edge node
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CN110380890A (en
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王文庭
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Wangsu Science and Technology Co Ltd
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Wangsu Science and Technology Co Ltd
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Priority to CN201910474788.2A priority Critical patent/CN110380890B/en
Priority to PCT/CN2019/096171 priority patent/WO2020244027A1/en
Priority to EP19880946.9A priority patent/EP3767884A4/en
Publication of CN110380890A publication Critical patent/CN110380890A/en
Priority to US16/882,347 priority patent/US11303532B2/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H04L43/0864—Round trip delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14—Network analysis or design
    • H04L41/142—Network analysis or design using statistical or mathematical methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS
    • H04L41/5009—Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS
    • H04L41/5019—Ensuring fulfilment of SLA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
    • H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route

Abstract

The invention discloses a CDN system service quality detection method and a system, wherein the method comprises the following steps: the detection node sends a copy instruction to the edge node; after receiving the replication instruction, the edge node replicates the received first request information to generate second request information; the edge node sends the second request information to a CDN system to be detected; the detection node acquires first response information corresponding to the first request information and acquires second response information corresponding to the second request information from the CDN system to be detected; and the detection node compares the first response information with the second response information to obtain the service quality of the CDN system to be detected. The invention can detect the service quality of the CDN system of the friend to be measured in advance, thereby ensuring the service quality after the measurement is cut and reducing the condition of back cut caused by the problem of the service quality after the measurement is cut.

Description

CDN system service quality detection method and system
Technical Field
The invention relates to the technical field of CDN, in particular to a CDN system service quality detection method and a system.
Background
The CDN is called a Content Delivery Network, that is, a Content Delivery Network, and is a layer of intelligent virtual Network constructed on the basis of the existing internet by placing node servers at various places of the Network. The CDN system can direct a user's request to a node server closest to the user in real time according to network traffic and comprehensive information such as connection of each node, a load condition, a distance to the user, and response time. The method aims to enable the user to obtain the required content nearby, solve the problem of congestion of the Internet network and improve the response speed of the user for accessing the website.
With the rapid development of the internet, especially the popularization of multimedia applications such as on-demand and live broadcasting, more node servers are needed to improve the network service quality, and the application is integrated with the CDN. The converged CDN technology is a technology for providing network services by means of a friend CDN system, namely, received request traffic is sent to the friend CDN system, so that the response speed of a user for accessing a website can be improved, and the construction cost of the node can be greatly reduced.
However, the existing converged CDN technology still has some problems. The quality of service of the friend CDN system to be cut off may not meet the requirement, and if the cut is made to such friend CDN system, the user experience may be affected, so the quality of service condition of the friend CDN system needs to be detected in advance. The traditional detection method detects by a mode of manually constructing flow, and the mode wastes time and labor, has small flow and single data, and cannot ensure the accuracy of detection.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a method and a system for detecting a quality of service of a CDN system. The technical scheme is as follows:
in a first aspect, a method for detecting quality of service of a CDN system is provided, where the method includes:
the method comprises the steps that a detection node sends a replication instruction to an edge node, so that the edge node replicates received first request information after receiving the replication instruction, second request information is generated, and the edge node sends the second request information to a CDN system to be detected;
and the detection node compares first response information of the first request information with second response information of the second request information to obtain the service quality of the CDN system to be detected.
Optionally, the replication instruction includes a target domain name;
correspondingly, after receiving the replication instruction, the edge node replicates the received first request message to generate a second request message, including:
and after receiving the replication instruction, the edge node receives first request information, and if the first request information comprises the target domain name, the edge node replicates the first request information to generate second request information.
Optionally, the copy instruction includes an indication of enlarging the flow by n times, where n is a positive integer;
correspondingly, after receiving the replication instruction, the edge node replicates the received first request message to generate a second request message, including:
and after receiving the replication instruction, the edge node receives first request information, and replicates the first request information for n times to obtain n pieces of second request information.
Optionally, the copy instruction includes an indication of reducing the flow by m times, where m is a positive integer;
correspondingly, after receiving the replication instruction, the edge node replicates the received first request message to generate a second request message, including:
and after receiving the replication instruction, the edge node receives first request information, and performs replication every m pieces of the first request information to obtain second request information.
Optionally, after the step of receiving the copy instruction, the edge node copying the received first request information and generating the second request information, includes:
and the edge node marks the second request information and the first request information corresponding to the second request information.
Optionally, the first response information and the second response information include a copy identifier.
Optionally, the step of comparing, by the detection node, first response information of the first request information with second response information of the second request information to obtain the service quality of the CDN system to be detected includes:
and comparing the response results and the response time in the first response information and the second response information to obtain the service quality of the CDN system to be detected.
In a second aspect, a quality of service detection system for a CDN system is provided, where the system includes: detecting nodes and edge nodes;
the detection node comprises:
a sending module, configured to send a replication instruction to the edge node, so that the edge node replicates the received first request information after receiving the replication instruction, generates second request information, and sends the second request information to the CDN system to be detected;
and the comparison module is used for comparing first response information of the first request information with second response information of the second request information to obtain the service quality of the CDN system to be detected.
Optionally, the replication instruction includes a target domain name;
correspondingly, the edge node is specifically configured to:
after receiving the replication instruction, receiving first request information, and if the first request information includes the target domain name, replicating the first request information to generate second request information.
Optionally, the copy instruction includes an indication of enlarging the flow by n times, where n is a positive integer;
correspondingly, the edge node is further configured to:
after the replication instruction is received, first request information is received, and the first request information is replicated for n times to obtain n pieces of second request information.
Optionally, the copy instruction includes an indication of reducing the flow by m times, where m is a positive integer;
correspondingly, the edge node is further configured to:
after the replication instruction is received, first request information is received, and replication is performed every m pieces of the first request information to obtain second request information.
Optionally, the edge node is further configured to mark the second request information and the first request information corresponding to the second request information.
Optionally, the first response information and the second response information include a copy identifier.
Optionally, the comparison module is specifically configured to:
and comparing the response results and the response time in the first response information and the second response information to obtain the service quality of the CDN system to be detected.
In a third aspect, a node device is provided, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the CDN system quality of service detection method of the first aspect.
In a fourth aspect, a computer-readable storage medium is provided, which stores a computer program, and when the computer program is executed by a processor, the CDN system quality of service detection method of the first aspect is implemented.
The embodiment of the invention has the following beneficial effects:
(1) the edge node copies the request information sent by the client to obtain the test flow for testing the CDN system of the friend, and because the edge node receives a large amount of request information in a real scene, a large amount of diversified test flow can be obtained through flow copying, the construction efficiency of the test flow can be improved, and the accuracy of the test can be improved by using the real request information;
(2) the whole testing process of the embodiment of the invention, including the comparison and analysis of the response results, is realized automatically, thereby reducing the related management cost and labor cost, and improving the testing efficiency and the testing accuracy;
(3) the detection method of the embodiment of the invention can detect the service quality of the CDN system of the friend to be measured in advance, thereby ensuring the service quality after the measurement is cut and reducing the condition of back cut caused by the problem of the service quality after the measurement is cut.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a network framework according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting quality of service of a CDN system according to an embodiment of the present invention;
fig. 3 is a block diagram of a detection node according to an embodiment of the present invention;
fig. 4 is a block diagram of a node device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a method for detecting the service quality of a CDN system, which can be applied to a network framework shown in FIG. 1. The network framework comprises detection nodes, edge nodes and a CDN system to be detected. The detection nodes and the edge nodes are located in the CDN system, and the CDN system to be detected is the friend CDN system. The detection node is used for sending a replication instruction for carrying out flow replication to the edge node. The edge node is generally configured to receive the first request message sent by the client, and respond. After receiving the replication instruction, the edge node also replicates the received first request information to generate second request information, and then sends the second request information to the CDN system to be detected. And the CDN system to be detected receives the second request information and responds. And the detection node acquires first response information corresponding to the first request information, acquires second response information corresponding to the second request information from the CDN system to be detected, and compares the first response information with the second response information to obtain the service quality of the CDN system to be detected.
The detection node includes a processor, a memory, and a transceiver, where the processor may be configured to perform processing of detecting quality of service of the CDN system in the following process, the memory may be configured to store data required in the following processing process and generated data, and the transceiver may be configured to receive and send related data in the following processing process, for example, to obtain data to be processed from other devices, and send a data processing result to other devices.
Referring to fig. 2, a flowchart of a method for detecting the quality of service of the CDN system according to an embodiment of the present invention includes the following steps.
Step 201, the detection node sends a copy instruction to the edge node.
In order to detect the service quality of a friend CDN system in a target area, a detection node may randomly select an edge node of the CDN system in the target area, and send a copy instruction to the edge node, thereby starting a traffic copy function of the edge node.
In order to detect the service quality of the friend CDN system for a certain website, the replication instruction may include a target domain name corresponding to the website, so that the edge node only replicates request information for accessing the website, thereby making detection more targeted and more accurate.
Step 202, after receiving the replication instruction, the edge node replicates the received first request information to generate second request information.
In a real application, the edge node continuously receives the request information sent by the client and responds, and after receiving the copy instruction sent by the detection node, the edge node can copy the received request information by using a preset request copy tool, such as a TCPCopy tool. By copying the real flow, the real environment can be simulated more truly. Because the edge node receives a large amount of request information in a real scene, a large amount of diversified test traffic can be obtained through traffic replication, the construction efficiency of the test traffic can be improved, and the accuracy of the test can be improved by using the real request information.
After receiving the replication instruction, the edge node analyzes the replication instruction, if the replication instruction comprises a target domain name, whether the received first request information comprises the target domain name is judged, if yes, the first request information is replicated, and if not, the first request information is not replicated.
In order to conveniently adjust the size of the flow for detection, the replication instruction may further include an n-fold flow amplification instruction or an m-fold flow reduction instruction, so that the flow can be amplified or reduced according to specific detection requirements. For example, when the traffic received by the edge node for replication is small, it is not enough to accurately detect the quality of service of the friend CDN system, and the traffic may be amplified; when the flow received by the edge node for copying is large, on the premise of ensuring that the service quality of the CDN system of the friend can be accurately detected, the flow consumption is reduced, the cost is saved, and the flow can be properly reduced.
When the replication instruction comprises an instruction of amplifying the flow by n times, wherein n is a positive integer, after receiving the replication instruction, the edge node receives first request information, and replicates the first request information for n times to obtain n pieces of second request information, so that the flow is amplified.
When the replication instruction comprises an m-fold flow reduction instruction, wherein m is a positive integer, the edge node receives first request information after receiving the replication instruction, and performs replication every m pieces of the first request information to obtain second request information, so as to reduce the flow. For example, when m is 3, the received first request information, fourth first request information, and seventh first request information … … are copied in order.
After copying the first request information and generating the second request information, the edge node marks the copied first request information and the copied second request information, that is, marks the second request information and the first request information corresponding to the second request information, to obtain the first request information and the second request information including the copy identifier.
And the edge node responds to the first request information containing the replication identifier to obtain first response information containing the replication identifier.
Step 203, the edge node sends the second request information to a CDN system to be detected.
And the CDN system to be detected receives the second request information sent by the edge node, and responds to the second request information to obtain second response information. When the second request message contains the copy identifier, the obtained second response message also contains the copy identifier.
Step 204, the detection node obtains first response information corresponding to the first request information, and obtains second response information corresponding to the second request information from the CDN system to be detected.
In a specific application, after the edge node responds to the request message, the response message is uploaded to the log storage system. The response information includes a response result and a response time. Each response message includes a status code to indicate whether the response is successful, so the response result may include the status code. The response time is the time used to respond to the request information.
The log storage system comprises response information of all request information, the first response information and the second response information both comprise replication identifiers, and the first response information can be searched from the log storage system of the CDN system and the second response information can be searched from the log storage system of the CDN system to be detected by searching for the response information containing the replication identifiers. Specifically, the second response information may be searched for from a log storage system of the CDN system to be detected through the interface.
Step 205, the detection node compares the first response information and the second response information to obtain the service quality of the CDN system to be detected.
The second request information is copied from the first request information, the contents accessed by the two request information are the same, the CDN system and the CDN system to be detected respond to the same request, the default service quality of the CDN system meets the requirement, therefore, the obtained first response information also meets the requirement, and the first response information can be used as a reference value to judge the quality of the second response information obtained by the CDN system to be detected. Further, the detection node may determine the service quality of the CDN system to be detected by comparing response results and response times in the response information of the CDN system and the CDN system to be detected.
In implementation, the detection node may determine the service quality of the CDN system to be detected by comparing response information generated by the CDN system and the CDN system to be detected for the same traffic. The edge node receives a plurality of first request messages and second request messages copied from the first request messages, wherein the first request messages and the second request messages are the same traffic. The CDN system and the CDN system to be detected respectively generate a piece of response information aiming at the same flow, the response information generated by the CDN system comprises a plurality of pieces of first response information, and the response information generated by the CDN system to be detected comprises a plurality of pieces of second response information. Firstly, comparing response results in two pieces of response information, wherein the specific process comprises the following steps: judging whether the response result in each first response message in the plurality of first response messages is the same as the response result in the corresponding second response message, if so, indicating that the comparison is successful, and if not, indicating that the comparison is failed; and if the ratio of the results successfully compared in all the comparison results reaches a first preset ratio, indicating that the function realization of the CDN system to be detected meets the preset requirement. And comparing the response time in the two pieces of response information to judge the quality of the CDN system to be detected, wherein the specific process comprises the following steps: and calculating a difference value between the response time in each first response message in the plurality of first response messages and the response time in the corresponding second response message, wherein if the ratio of the difference value larger than the preset value in all the difference values reaches a second preset ratio, the service quality of the CDN system to be detected meets the preset requirement.
The embodiment of the invention has the following beneficial effects:
(1) the edge node copies the request information sent by the client to obtain the test flow for testing the CDN system of the friend, and because the edge node receives a large amount of request information in a real scene, a large amount of diversified test flow can be obtained through flow copying, the construction efficiency of the test flow can be improved, and the accuracy of the test can be improved by using the real request information;
(2) the whole testing process of the embodiment of the invention, including the comparison and analysis of the response results, is realized automatically, thereby reducing the related management cost and labor cost, and improving the testing efficiency and the testing accuracy;
(3) the detection method of the embodiment of the invention can detect the service quality of the CDN system of the friend to be measured in advance, thereby ensuring the service quality after the measurement is cut and reducing the condition of back cut caused by the problem of the service quality after the measurement is cut.
Based on the same inventive concept as the embodiment of the method for detecting the service quality of the CDN system, the embodiment of the invention also provides a system for detecting the service quality of the CDN system, wherein the system comprises a detection node and an edge node.
Referring to a block diagram of a structure of a detection node shown in fig. 3, the detection node includes:
a sending module 301, configured to send a copy instruction to the edge node, so that after receiving the copy instruction, the edge node copies the received first request information, generates second request information, and sends the second request information to the CDN system to be detected;
an obtaining module 302, configured to obtain first response information corresponding to the first request information, and obtain second response information corresponding to the second request information from the CDN system to be detected;
a comparison module 303, configured to compare the first response information and the second response information to obtain the service quality of the CDN system to be detected.
Preferably, the replication instruction includes a target domain name;
correspondingly, the edge node is specifically configured to:
after receiving the replication instruction, receiving first request information, and if the first request information includes the target domain name, replicating the first request information to generate second request information.
Preferably, the replication instruction includes an indication of a flow amplification factor n, where n is a positive integer;
correspondingly, the edge node is further configured to:
after the replication instruction is received, first request information is received, and the first request information is replicated for n times to obtain n pieces of second request information.
Preferably, the replication instruction includes an m-fold reduction of traffic indication, where m is a positive integer;
correspondingly, the edge node is further configured to:
after the replication instruction is received, first request information is received, and replication is performed every m pieces of the first request information to obtain second request information.
Preferably, the edge node is further configured to mark the second request information and the first request information corresponding to the second request information.
Preferably, the first response information and the second response information include a copy identifier.
Preferably, the comparison module 303 is specifically configured to:
and comparing the response results and the response time in the first response information and the second response information to obtain the service quality of the CDN system to be detected.
The embodiment of the invention has the following beneficial effects:
(1) the edge node copies the request information sent by the client to obtain the test flow for testing the CDN system of the friend, and because the edge node receives a large amount of request information in a real scene, a large amount of diversified test flow can be obtained through flow copying, the construction efficiency of the test flow can be improved, and the accuracy of the test can be improved by using the real request information;
(2) the whole testing process of the embodiment of the invention, including the comparison and analysis of the response results, is realized automatically, thereby reducing the related management cost and labor cost, and improving the testing efficiency and the testing accuracy;
(3) the detection method of the embodiment of the invention can detect the service quality of the CDN system of the friend to be measured in advance, thereby ensuring the service quality after the measurement is cut and reducing the condition of back cut caused by the problem of the service quality after the measurement is cut.
It should be noted that: the detection node provided in the foregoing embodiment may be implemented based on a computer program, and when performing quality of service detection of a CDN system, only the division of the functional modules is described as an example, in practical application, the function distribution may be completed by different functional modules according to needs, that is, an internal structure of the detection node is divided into different functional modules, so as to complete all or part of the functions described above. The embodiments of the CDN system service quality detection system and the CDN system service quality detection method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the method embodiments and are not described here again.
Fig. 4 is a block diagram of a node device according to an embodiment of the present invention. The node apparatus 400 may vary significantly depending on configuration or performance, and may include one or more central processors 422 (e.g., one or more processors) and memory 432, one or more storage media 430 (e.g., one or more mass storage devices) storing application programs 442 or data 344. Wherein the memory 432 and storage medium 430 may be transient or persistent storage. The program stored on the storage medium 430 may include one or more modules (not shown), each of which may include a sequence of instruction operations for the node device. Still further, central processor 422 may be disposed in communication with storage medium 430 to execute a series of instruction operations in storage medium 430 on node device 400.
Node apparatus 400 may also include one or more power supplies 424, one or more wired or wireless network interfaces 450, one or more input-output interfaces 458, one or more keyboards 454, and/or one or more operating systems 441, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
Node apparatus 400 may include memory, and one or more computer programs, wherein the one or more computer programs are stored in the memory and configured to be executed by the one or more processors to implement the CDN system quality of service detection method described above:
sending a replication instruction to an edge node, so that the edge node replicates the received first request information after receiving the replication instruction, generates second request information, and sends the second request information to a CDN system to be detected;
and comparing first response information of the first request information with second response information of the second request information to obtain the service quality of the CDN system to be detected.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A CDN system service quality detection method is characterized in that the method comprises the following steps:
the detection node sends a copying instruction including a target domain name to the edge node;
after receiving the replication instruction, the edge node judges whether the received first request information contains the target domain name, if so, the edge node replicates the first request information to generate second request information, and sends the second request information to the CDN system to be detected;
and the detection node searches first response information corresponding to the first request information from a log storage system of the CDN system, searches second response information corresponding to the second request information from the log storage system of the CDN system to be detected, and compares the first response information with the second response information to obtain the service quality of the CDN system to be detected.
2. The method of claim 1, wherein the replication instruction comprises an indication of a flow magnification of n, wherein n is a positive integer;
correspondingly, after receiving the replication instruction, the edge node replicates the received first request message to generate a second request message, including:
and after receiving the replication instruction, the edge node receives first request information, and replicates the first request information for n times to obtain n pieces of second request information.
3. The method of claim 1, wherein the replication instruction comprises an m-fold reduction in traffic indication, wherein m is a positive integer;
correspondingly, after receiving the replication instruction, the edge node replicates the received first request message to generate a second request message, including:
and after receiving the replication instruction, the edge node receives first request information, and performs replication every m pieces of the first request information to obtain second request information.
4. The method according to claim 1, wherein the edge node, after receiving the replication instruction, replicates the received first request message and generates a second request message, and the method comprises:
and the edge node marks the second request information and the first request information corresponding to the second request information.
5. The method of claim 1, wherein the first response information and the second response information comprise duplicate identifications.
6. The method according to claim 1, wherein the step of comparing, by the detection node, first response information of the first request information with second response information of the second request information to obtain the service quality of the CDN system to be detected includes:
and comparing the response results and the response time in the first response information and the second response information to obtain the service quality of the CDN system to be detected.
7. A CDN system service quality detection system is characterized in that the system comprises a detection node and an edge node;
the detection node comprises:
a sending module, configured to send a replication instruction including a target domain name to the edge node;
the comparison module is used for searching first response information corresponding to the first request information from a log storage system of the CDN system, searching second response information corresponding to the second request information from the log storage system of the CDN system to be detected, and comparing the first response information with the second response information to obtain the service quality of the CDN system to be detected;
the edge node is configured to determine whether the received first request information includes the target domain name after receiving the replication instruction, and if so, replicate the first request information to generate second request information and send the second request information to the CDN system to be detected.
8. The system of claim 7, wherein the comparison module is specifically configured to:
and comparing the response results and the response time in the first response information and the second response information to obtain the service quality of the CDN system to be detected.
9. A node apparatus, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the CDN system quality of service detection method of any of claims 1 to 6.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the CDN system quality of service detection method of any one of claims 1 to 6.
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